Enhanced Formation of Calcia-Gallia Glass by Containerless Processing
Glass formation from melts of 44 CaO 56Ga2O3(mol%) was investigated under containerless conditions obtained by acoustically stabilized aerodynamic levitation in combination with laser beam heating. The critical cooling rate for glass formation was Rc<100°C/s, much less than values reported in the literature (Rc=550o±120o C/s and ca 350oC/s) for pendant drops of this composition attached to Pt-Rh thermocouples. High values of Rc in pendant drop experiments were confirmed for the specimens used in this work.
J. K. Weber et al., "Enhanced Formation of Calcia-Gallia Glass by Containerless Processing," Journal of the American Ceramic Society, vol. 76, no. 8, pp. 2139-2141, Wiley-Blackwell, Aug 1993.
The definitive version is available at http://dx.doi.org/10.1111/j.1151-2916.1993.tb08351.x
Materials Science and Engineering
Keywords and Phrases
Carbon dioxide lasers; Cooling; Gallium compounds; Heating; Laser applications; Laser beams; Lime; Melting; Structure (composition); Thermal effects; Thermocouples; Acoustically stabilized aerodynamic levitation; Calcia-gallia glass; Containerless glass processing; Laser beam heating; Pendant drops
International Standard Serial Number (ISSN)
Article - Journal
© 1993 Wiley-Blackwell, All rights reserved.